Home / 5,161.39-7,125.20-3,672.43

Finding the Fourth Proportional to 5,161.39, 7,125.20 and 3,672.43

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Solution

The fourth proportional to 5,161.39, 7,125.20 and 3,672.43 is: 5,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.39 : 7,125.20 = 3,672.43 : x
  2. Step 2: Convert to fraction form
    5,161.39/7,125.20 = 3,672.43/x
  3. Step 3: Cross multiply
    5,161.39x = 7,125.20 × 3,672.43
  4. Step 4: Simplify right side
    5,161.39x = 26,166,798.24
  5. Step 5: Solve for x
    x = 26,166,798.24/5,161.39
  6. Step 6: Final answer
    x = 5,069.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.